EP0000387A1 - Procédé pour le qauffrage et la perforation de feuilles thermoplastiques - Google Patents

Procédé pour le qauffrage et la perforation de feuilles thermoplastiques Download PDF

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Publication number
EP0000387A1
EP0000387A1 EP78100339A EP78100339A EP0000387A1 EP 0000387 A1 EP0000387 A1 EP 0000387A1 EP 78100339 A EP78100339 A EP 78100339A EP 78100339 A EP78100339 A EP 78100339A EP 0000387 A1 EP0000387 A1 EP 0000387A1
Authority
EP
European Patent Office
Prior art keywords
embossing
roller
film
parts
heated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP78100339A
Other languages
German (de)
English (en)
Inventor
Rudolf Dipl.-Ing. Mertens
Rudi Minkenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DORNBUSCH MASCHF
Maschinenfabrik Dornbusch & Co Kg
Original Assignee
DORNBUSCH MASCHF
Maschinenfabrik Dornbusch & Co Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DORNBUSCH MASCHF, Maschinenfabrik Dornbusch & Co Kg filed Critical DORNBUSCH MASCHF
Publication of EP0000387A1 publication Critical patent/EP0000387A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts

Definitions

  • the invention relates to a method for embossing and perforating thermoplastic plastic films, in which the heated film is passed between an embossing and a rubber roller.
  • the plastic film consisting of a thermoplastic material is first heated, which results in a reduction in the outlay during processing, and then guided over at least two pairs of rollers which emboss and perforate the film.
  • Different, separate roller pairs are therefore provided for the two process steps of stamping and perforating.
  • the machining process takes a relatively long time, which at the same time means a reduction in the achievable output and, moreover, makes the devices for carrying out the already known methods so complex that the acquisition costs for this are quite high.
  • the invention proposes embossing and perforating the film while it is in contact with the embossing roller.
  • the essential part of the manufacturing process which was previously distributed over several rollers, is concentrated on a single one.
  • the advantages that can be achieved in this way are a time reduction in the production process and, because of the reduction in the number of rollers required, a structural simplification of the device required to carry out the method proposed according to the invention.
  • the core of this device consists of the embossing roller and a rubber roller lying against it, through which the film to be processed, after it has been heated, is passed.
  • the heating itself usually takes place either via a heating drum or via infrared emitters.
  • the invention further proposes to first emboss the film and to remove the upstanding parts of the film by means of a knife or flame device.
  • embossing and perforation take place in two operations that are subordinate to both the time and the extent of the embossing rollers.
  • the film must still be in contact with the embossing roller during perforation, which is why it is advisable to guide it around the roller.
  • the heating of the plastic film can be carried out in the same way as in the previously mentioned methods. It is crucial in this process that the perforation over a Knife or flame device takes place, which cuts out or burns out those parts of the film which lie on the upstanding parts of the embossed engravings.
  • a further possibility for perforating the film is made possible by the invention by the proposal to remove the parts of the film which stand up during embossing by means of a roller which is heated by an adjacent heating roller.
  • the roller heated superficially by the heating roller only touches the parts of the foil resting on the upstanding parts of the embossing engravings, which are removed from the foil by the heat and contact pressure of the roller and transferred to the heating roller where they are removed by a suitable doctor device. It has proven to be expedient to manufacture the roller from silicone and the heating roller from steel.
  • heating roller or the knife device it is also intended to keep the heating roller or the knife device at a temperature of 60-160 ° C, which makes lifting and cutting considerably easier.
  • the invention recommends that the high-lying engraving sections - that is, the parts of the embossed engravings on which the foil parts to be removed later rest - be arranged in one plane.
  • both the manufacture of the Roller and knife device, including that of the embossing roller can be carried out mechanically and thus as particularly simple.
  • the shearing off of certain film parts lying on the embossing roller is particularly easy if, as the invention provides, the embossing engraving is arranged spirally on the roller.
  • the invention proposes to keep the embossing roller itself at a temperature of 60 to 90 ° C, which supports the detachment and also contributes to the heating of the film during the decisive embossing process.
  • heating the embossing roller significantly reduces the required contact pressure and thus the design effort
  • FIG. 1 shows a film 1 made of thermoplastic material, which is first heated over a surface using a heating device 2, for example consisting of an infrared radiator, and then fed to an embossing roller 3 and a rubber roller 4.
  • the embossing roller 3 has a suitable engraving on its surface, against which the heated plastic film 1 is pressed by means of the rubber roller 4 and is given its embossing determined by the engraving.
  • the film 1 lies in a certain area on the circumference of the embossing roller 3, where the parts of the film 1 resting on the high-lying engraving areas are cut off by the knife bar 6 by means of a knife device 5.
  • the now embossed and perforated film 1 can be removed and wound up, for example, via an auxiliary roller 7.
  • the film 1 is embossed in the same manner already described and then, even while of the contact of film 1 with embossing roller 3, the now upstanding parts of film 1 are removed by means of a roller 8.
  • the roller 8, which is expediently made of silicone, is superficially heated by the abutment of a heating roller 9, which can be made of steel, for example, and also takes up the parts located on the roller 8 and removed from the film 1. These are then removed from the heating roller 9 by a doctor bar 10.
  • the parts of the film 1 that stand up during embossing are removed here by pressing on a surface-heated roller 8.
  • this removal takes place via a flame device 11, which can be designed, for example, as a gas burner and onto the upstanding parts of the. Slide 1 - these are the parts of Slide 1 to be removed - is focused.
  • the flame device 11 thus takes over the function of the knife device 5 shown in FIG. 1 including the knife bar 6, so that the embossing of the film 1 takes place in the same way in all the devices shown and only the perforation is carried out by different devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP78100339A 1977-07-19 1978-07-10 Procédé pour le qauffrage et la perforation de feuilles thermoplastiques Withdrawn EP0000387A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772732501 DE2732501A1 (de) 1977-07-19 1977-07-19 Verfahren zum praegen und perforieren von thermoplastischen kunststoffolien
DE2732501 1977-07-19

Publications (1)

Publication Number Publication Date
EP0000387A1 true EP0000387A1 (fr) 1979-01-24

Family

ID=6014245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100339A Withdrawn EP0000387A1 (fr) 1977-07-19 1978-07-10 Procédé pour le qauffrage et la perforation de feuilles thermoplastiques

Country Status (2)

Country Link
EP (1) EP0000387A1 (fr)
DE (1) DE2732501A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417382A1 (fr) * 1978-02-15 1979-09-14 Unilever Nv Procede et machine pour la fabrication d'une pellicule permeable a l'humidite
EP1004412A1 (fr) * 1998-11-24 2000-05-31 The Procter & Gamble Company Procédé permettant de perforer sélectivement une bande non tissée
WO2004033169A1 (fr) * 2002-10-09 2004-04-22 3M Innovative Properties Company Appareil et procedes de perforation a flamme de films
US7323072B2 (en) 2005-04-27 2008-01-29 Kimberly-Clark Worldwide, Inc. Multi-roll bonding and aperturing
WO2009083560A1 (fr) * 2007-12-28 2009-07-09 Union Industries S.P.A. Procédé de fabrication de textiles non-tissés perforés
US7622064B2 (en) 2003-10-06 2009-11-24 3M Innovative Properties Company Methods and apparatus for oxygen enriched flame-perforation of a polymer film
DE102022107953A1 (de) 2022-04-04 2023-10-05 Tesa Se Doppelseitiges Klebeband mit planarer Gasdurchlässigkeit

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100309A (fr) * 1951-11-13 1955-09-19 Procédé pour estamper des feuilles fabriquées en matériaux synthétiques et thermoplastiques, en particulier à base de chlorure polyvinylique
US3043071A (en) * 1960-02-29 1962-07-10 J B Dove & Sons Inc Packaging machine
US3054148A (en) * 1951-12-06 1962-09-18 Zimmerli William Frederick Process of producing a perforated thermoplastic sheet
GB1012963A (en) * 1961-06-21 1965-12-15 Smith & Nephew Improvements in and relating to films of thermoplastic material
FR1423487A (fr) * 1964-02-05 1966-01-03 Gen Tire & Rubber Co Feuille de matière plastique ajourée et son procédé de fabrication
US3243488A (en) * 1962-07-06 1966-03-29 Kendall & Co Method of perforating thermoplastic sheets
GB1073605A (en) * 1962-12-21 1967-06-28 Smith & Nephew Improvements in and relating to perforating films of thermoplastic material
GB1085949A (en) * 1963-12-18 1967-10-04 Smith & Nephew Improvements in and relating to films of thermoplastic material
GB1162977A (en) * 1965-11-26 1969-09-04 Ici Ltd Improved Breathable Plastic Coated Fabrics
US3471604A (en) * 1966-02-16 1969-10-07 Phillips Petroleum Co Preworking film
US3566726A (en) * 1968-06-13 1971-03-02 Pantasote Co Of New York Inc T Method of making perforated film
FR2073807A5 (fr) * 1969-12-18 1971-10-01 Mobil Oil Corp
DE2258513A1 (de) * 1971-11-29 1973-06-07 Dulux Australia Ltd Genopptes flachmaterial sowie verfahren und vorrichtung fuer seine herstellung
US3762255A (en) * 1971-10-20 1973-10-02 Union Carbide Corp Method and apparatus for piercing thin sheet material

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100309A (fr) * 1951-11-13 1955-09-19 Procédé pour estamper des feuilles fabriquées en matériaux synthétiques et thermoplastiques, en particulier à base de chlorure polyvinylique
US3054148A (en) * 1951-12-06 1962-09-18 Zimmerli William Frederick Process of producing a perforated thermoplastic sheet
US3043071A (en) * 1960-02-29 1962-07-10 J B Dove & Sons Inc Packaging machine
GB1012963A (en) * 1961-06-21 1965-12-15 Smith & Nephew Improvements in and relating to films of thermoplastic material
US3243488A (en) * 1962-07-06 1966-03-29 Kendall & Co Method of perforating thermoplastic sheets
GB1073605A (en) * 1962-12-21 1967-06-28 Smith & Nephew Improvements in and relating to perforating films of thermoplastic material
GB1085949A (en) * 1963-12-18 1967-10-04 Smith & Nephew Improvements in and relating to films of thermoplastic material
FR1423487A (fr) * 1964-02-05 1966-01-03 Gen Tire & Rubber Co Feuille de matière plastique ajourée et son procédé de fabrication
GB1162977A (en) * 1965-11-26 1969-09-04 Ici Ltd Improved Breathable Plastic Coated Fabrics
US3471604A (en) * 1966-02-16 1969-10-07 Phillips Petroleum Co Preworking film
US3566726A (en) * 1968-06-13 1971-03-02 Pantasote Co Of New York Inc T Method of making perforated film
FR2073807A5 (fr) * 1969-12-18 1971-10-01 Mobil Oil Corp
US3762255A (en) * 1971-10-20 1973-10-02 Union Carbide Corp Method and apparatus for piercing thin sheet material
DE2258513A1 (de) * 1971-11-29 1973-06-07 Dulux Australia Ltd Genopptes flachmaterial sowie verfahren und vorrichtung fuer seine herstellung

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417382A1 (fr) * 1978-02-15 1979-09-14 Unilever Nv Procede et machine pour la fabrication d'une pellicule permeable a l'humidite
EP1004412A1 (fr) * 1998-11-24 2000-05-31 The Procter & Gamble Company Procédé permettant de perforer sélectivement une bande non tissée
WO2000030818A1 (fr) * 1998-11-24 2000-06-02 The Procter & Gamble Company Procede et appareil de production de materiaux de voile selectivement perfores
EP1854599A2 (fr) * 2002-10-09 2007-11-14 3M Innovative Properties Company Appareil et procédés de perforation à flamme de films
US7037100B2 (en) 2002-10-09 2006-05-02 3M Innovative Properties Company Apparatus for flame-perforating films and methods of flame-perforating films
EP1854597A2 (fr) * 2002-10-09 2007-11-14 3M Innovative Properties Company Appareil et procédés de perforation à flamme de films
US7686996B2 (en) 2002-10-09 2010-03-30 3M Innovative Properties Company Methods for flame-perforating films
EP1854598A2 (fr) * 2002-10-09 2007-11-14 3M Innovative Properties Company Procédé de perforation à flamme d'un film
WO2004033169A1 (fr) * 2002-10-09 2004-04-22 3M Innovative Properties Company Appareil et procedes de perforation a flamme de films
EP1854598A3 (fr) * 2002-10-09 2009-03-04 3M Innovative Properties Company Procédé de perforation à flamme d'un film
EP1854597A3 (fr) * 2002-10-09 2009-03-11 3M Innovative Properties Company Procédé de perforation à flamme d'un film
EP1854599A3 (fr) * 2002-10-09 2009-03-11 3M Innovative Properties Company Procédé de perforation à flamme d'un film
US7980849B2 (en) 2002-10-09 2011-07-19 3M Innovative Properties Company Apparatus and method for flame-perforating films
US7622064B2 (en) 2003-10-06 2009-11-24 3M Innovative Properties Company Methods and apparatus for oxygen enriched flame-perforation of a polymer film
US7323072B2 (en) 2005-04-27 2008-01-29 Kimberly-Clark Worldwide, Inc. Multi-roll bonding and aperturing
WO2009083560A1 (fr) * 2007-12-28 2009-07-09 Union Industries S.P.A. Procédé de fabrication de textiles non-tissés perforés
DE102022107953A1 (de) 2022-04-04 2023-10-05 Tesa Se Doppelseitiges Klebeband mit planarer Gasdurchlässigkeit

Also Published As

Publication number Publication date
DE2732501A1 (de) 1979-02-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn
RIN1 Information on inventor provided before grant (corrected)

Inventor name: MERTENS, RUDOLF, DIPL.-ING.

Inventor name: MINKENBERG, RUDI